Properties of the Number 83581

Eighty-Three Thousand Five Hundred Eighty-One

Basics

Value: 83580 → 83581 → 83582

Parity: odd

Prime: No

Previous Prime: 83579

Next Prime: 83591

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 19 × 53 × 83

Divisors: 1, 19, 53, 83, 1007, 1577, 4399, 83581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100011001111101

Octal: 243175

Duodecimal: 40451

Hexadecimal: 1467d

Square: 6985783561

Square Root: 289.10378759193037

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Wiener index of a benzenoid consisting of a double-step spiral chain of n hexagons (n>=2, s=21; see the Gutman et al. reference). A193397

Floor(exp(n)/n²). A132405

a(n) = 8/3 - 5*(-2)ⁿ/3. A83581